Model MB7621 is recommended for actual cable Internet service speeds up to 650 Mbps. Wirecutter rates this 'the best modem for most people.' A Full-Band Capture Digital Tuner ensures faster, more reliable Internet. This cable modem's 1 Gigabit Ethernet port connects to a Wi Fi router, computer, HDTV, game station, or streaming video device. Great for use with Whole Home Wi Fi or Mesh networks like eero, Google Wi Fi, and Orbi. Requires cable Internet service.Approved by and for use with Comcast Xfinity and Xfinity X1, Cox, Charter Spectrum, Time Warner Cable, Bright House, Cable One, Sudden Link, RCN, and other cable service providers. Eliminate cable modem rental fees up to 156 dollars per year. Setup is fast and easy using the quick start guide.